Validation of hearing screening procedures in Ecuadorian schools

Validation of hearing screening procedures in Ecuadorian schools

3ie Impact Evaluation Report 26

Karen Muñoz, Karl White, Catherine Callow-Heusser and Eduardo Ortiz

Approximately 90 per cent of children with hearing loss are found in developing countries. If it is not detected early in life, children who are deaf or hard of hearing lag behind their peers in social and cognitive development as well as in the learning of languages.

In this impact evaluation in Ecuador, Karen Muñoz, Karl White, Catherine Callow-Heusser and Eduardo Ortiz assess the effectiveness of the teacher-administered hearing screening questionnaire Tamizaje Auditivo Escolar in public schools. They do this by comparing the results of the questionnaire against what is considered the international gold standard for hearing screening: pure tone audiological testing. 

The study finds that the Tamizaje Auditivo Escolar programme fails to identify the majority of children with permanent hearing loss. The authors recommend that if the programme continues, significant systematic improvements need to be made in teacher training, protocol adherence, reducing follow up attrition, and expanding access to diagnostic services.

The impacts of formal registration of businesses in Malawi

Impacts of formal registration of businesses in Malawi

Impact evaluation 3ie 2019
Authors evaluated the impact of three interventions aimed at formalising small businesses in Malawi.

Unpacking the determinants of entrepreneurship development and economic empowerment for women in Kenya

Unpacking the determinants of entrepreneurship development and economic empowerment for women in Kenya

Impact evaluation 3ie 2019
Authors evaluated the impact of the International Labour Organization’s Gender and Entrepreneurship Together training programme (GET Ahead) in rural Kenya.

Impacts of key provisions in Ghana’s Petroleum Revenue Management Act

Impacts of key provisions in Ghana’s Petroleum Revenue Management Act

Impact evaluation 3ie 2019
The authors evaluated the impact of using public meetings and an ICT platform used by the Public Interest and Accountability Committee to promote transparency and accountability.

Using information to break the political resource curse in natural gas management in Mozambique

Using information to break the political resource curse in natural gas management in Mozambique

Impact evaluation 3ie 2019
This study evaluated the impact of providing information to local leaders and communities about the discovery of natural gas in Mozambique, and the implications for provincial government revenues and job creation.

Harnessing transparency initiatives to improve India’s environmental clearance process for the mineral mining sector

Harnessing transparency initiatives to improve India’s environmental clearance process for the mineral mining sector

Impact evaluation 3ie 2019
This study evaluated the impact of a set of reforms to the environmental clearance process in India, which included subjecting larger projects to scrutiny from regulators, independent experts and the public.